All categories
Practice HSK, IELTS, TOEFL, SAT, GRE, AWS, PMP and 50+ exams with free questions, mock tests and structured courses.
Language Learning
HSK 1-6 practice, Chinese characters, pinyin, JLPT N5-N1 Japanese, TOPIK I-II Korean, DELE B2 Spanish, DELF B1 French, TestDaF German and Duolingo English Test exam preparation.
Academic Exams
IELTS, TOEFL, Cambridge A2 Key, B1 Preliminary, B2 First, C1 Advanced and C2 Proficiency, SAT, ACT, GRE, GMAT, GCSE, A-Level, IB, AP Calculus, AMC, SSAT, ISEE, MCAT and LSAT practice sets.
Tech Certifications
AWS (CCP, SAA, Developer, Security, SysOps, ML Specialty, Database Specialty, Advanced Networking Specialty, DevOps Engineer Professional, Solutions Architect Professional), Azure (AZ-104, AZ-500, AI-900, AI-102, DP-900, DP-203, AZ-305, AZ-700), Power Platform (PL-900), Microsoft 365 (MS-900), GCP (ACE, PCA, DevOps, Network, Data Engineer, Security Engineer, Machine Learning Engineer), Google Cloud Digital Leader, PMP, PRINCE2, Agile/Scrum, CISSP, CEH, CompTIA Network+, Project+, Power BI, Tableau, Salesforce (Administrator, App Builder), CCNA, DevNet, Terraform, Kubernetes CKA, Google Data Analytics, data science, system design, frontend, backend and coding interview practice.
Overseas Life
Visa, tax, time zones, exchange rates, units, immigrant life and PHR/SPHR HR certification practice.
Japanese Learning
JLPT N5-N1 practice, Japanese vocabulary, grammar, kanji and reading exercises.
Finance Certifications
CFA, FRM and professional finance exam practice.
Marketing Certifications
Google Ads Search, Meta Blueprint and digital marketing certification practice.
Healthcare Certifications
NCLEX-RN, nursing fundamentals and medical certification practice.
Korean Learning
TOPIK I & II practice, Korean vocabulary, grammar, reading and listening exercises.
Common questions
How do I start practicing?
Browse by category or course, open any practice set, choose a mode, and start answering questions with instant explanations.
Are the courses and questions free?
Yes, all practice sets, mock exams and structured courses are free to use in your browser.
Can I save my progress?
Your wrong answers, favorites, scores, and study streak are saved in your browser, so you can review them on the same device.